One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,7)(6,8)(9,10,13,15)(11,12,16,14)(17,18)(19,20)(21,22)(23,24)(28,32)(30,31)(1,3,6,5)(2,7,8,4)(9,11)(10,14)(12,15)(13,16)(18,22)(19,24)(25,26,29,27)(28,30,32,31)(1,4,6,7)(2,3,8,5)(9,10,13,15)(11,14,16,12)(17,19)(18,23)(20,22)(21,24)(25,27,29,26)(28,31,32,30)(1,4)(2,3)(5,8)(6,7)(9,10)(11,14)(12,16)(13,15)(17,20,21,23)(18,19,22,24)(25,28,29,32)(26,30,27,31)(1,5,6,3)(2,7,8,4)(9,12,13,14)(10,11,15,16)(17,19)(18,20)(21,24)(22,23)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.